Valorization of Olive Pruning Residues through Bioconversion into Edible Mushroom Pleurotus ostreatus (Jacq. Ex Fr.) P. Kumm. (1871) of Improved Nutritional Value

Table 6

Fatty acid profile of substrates and mushrooms (dry basis, % of total fatty acids).

	WS		WS : OLPR 3 : 1 (v/v)		WS : OLPR 1 : 3 (v/v)
	S	M	S	M	S	M	S	M
PUFA
C18 : 2 linoleic acid	21.06 ± 0.003^a	80.58 ± 0.002^C	32.77 ± 0.002^b	68.46 ± 0.002^B	49.18 ± 0.002^c	64.24 ± 0.002^A	0.00	0.00
C18 : 3 linolenic acid	8.06 ± 0.001^c	0.20 ± 0.001^A	3.08 ± 0.002^a	0.46 ± 0.001^B	6.76 ± 0.003^b	Nd	0.00	0.00
MUFA
C16 : 1 palmitoleic acid	1.20 ± 0.004^a	0.09 ± 0.004^A	Nd	4.27 ± 0.002^C	Nd	1.24 ± 0.002^B	0.00	0.00
C18 : 1 oleic acid	10.48 ± 0.002^a	9.10 ± 0.002^A	13.57 ± 0.002^b	9.10 ± 0.000^A	17.40 ± 0.002^c	14.70 ± 0.002^B	0.00	0.00
SFA
C20 : 0 arachidic acid	Nd	Nd	5.17 ± 0.001^b	nd	2.26 ± 0.002^a	Nd	0.00	0.00
C16 : 0 palmitic acid	53.32 ± 0.002^c	9.18 ± 0.001^A	40.62 ± 0.002^b	14.86 ± 0.002^B	19.60 ± 0.002^a	16.44 ± 0.002^C	0.00	0.00
C18 : 0 stearic acid	5.88 ± 0.001^c	0.84 ± 0.002^A	4.78 ± 0.002^a	3.22 ± 0.004^C	4.80 ± 0.002^b	3.17 ± 0.002^B	0.00	0.00
C14 : 0 myristic acid	nd	Nd	Nd	0.54 ± 0.001^B	Nd	0.20 ± 0.002^A	0.00	0.00

Values are mean ± SD; means within the same column followed by the same letters of lowercase (corresponding to substrate: S) or uppercase (corresponding to mushroom: M) are not significantly different at according to Duncan’s multiple range test. PUFA: polyunsaturated fatty acids, MUFA: monounsaturated fatty acids, SFA: saturated fatty acids, S: substrate, M: mushroom, and nd: not detected.